AFP News Agency
CLEAN : Afghanistan veterans look back: Spanish corporal recounts his two tours
Corporal Seguel tells AFP about his experience as a soldier in Afghanistan, where he served for two six-month periods, in 2006 and 2007 (Footage by AFPTV via Getty Images)
Bridgeman Arts
With General Cargo Africa To London 50s
‘Palm Line’ Ship Movement list. Ships sail into Lagos harbor from London. Dockers tie ship. Trains planes cars. Lagos office workers. A worker joins ship, passing the loading of ship. He meets ships crew and shown cabin. Cargo aboard....
Khan Academy
Introduction to Logarithm Properties (Part 2), Logarithms
Sal gets to the heart of this video, clarifying that it's important to understand math "so you can apply it later on and not have to relearn everything every time." True to his word, Sal demonstrates ways to solve logs and exponents more...
Sophia Learning
Sophia: P H Scale: Lesson 2
This lesson will introduce the pH scale as a representation of proton concentration indicating acidity. It is 2 of 3 in the series titled "pH Scale."
![Sophia: Calculating [H+]: Lesson 2 Instructional Video](https://content.lessonplanet.com/knovation/original/153159-5e8d2117c1c6c25be5b0a672ef084034.jpg?1661759516 "Sophia: Calculating [H+]: Lesson 2 Instructional Video")
Sophia Learning
Sophia: Calculating [H+]: Lesson 2
This lesson will demonstrate how to calculate the H+ concentration given the pH of a solution. It is 2 of 2 in the series titled "Calculating [H+]". [4:47]
![Sophia: Calculating [Oh ]: Lesson 1 Instructional Video](https://content.lessonplanet.com/knovation/original/153169-7238cda0cf212d8d63eca2544b5c9bdc.jpg?1661759517 "Sophia: Calculating [Oh ]: Lesson 1 Instructional Video")
Sophia Learning
Sophia: Calculating [Oh ]: Lesson 1
This lesson will demonstrate how to calculate the [OH-] using either the pOH. It is 1 of 2 in the series titled "Calculating [OH-]". [2:15]
Sophia Learning
Sophia: Calculating P H: Lesson 2
This lesson will demonstrate how to calculate the pH of a solution given the hydrogen ion concentration. It is 2 of 2 in the series titled "Calculating pH."
Sophia Learning
Sophia: Calculating P Oh: Lesson 1
This lesson will demonstrate how to calculate the pOH of a solution knowing the total of both pH and pOH is 14. It is 1 of 2 in the series titled "Calculating pOH."
![Sophia: Converting Among P H, [H+], P Oh and [Oh ]: Lesson 2 Instructional Video](https://content.lessonplanet.com/knovation/original/153525-ef021fc9b02c84ad17eea0bc5575ca7f.jpg?1661759787 "Sophia: Converting Among P H, [H+], P Oh and [Oh ]: Lesson 2 Instructional Video")
Sophia Learning
Sophia: Converting Among P H, [H+], P Oh and [Oh ]: Lesson 2
This lesson will demonstrate how to convert among pH, [H+], pOH and [OH-] using several examples. It is 2 of 2 in the series titled "Converting among pH, [H+], pOH and [OH-]". [5:19]
Other
Mario's Math Tutoring: Act Math 21 Concepts to Boost Your Score
A video [48 mins, 48 sec] explaining 21 different math concepts to help students prepare for the ACT including; circumference; averages; probability; multiplication counting principle; functions; circles; percentages; factoring; rules of...
![Sophia: Calculating [H+]: Lesson 1 Instructional Video](https://content.lessonplanet.com/knovation/original/153160-b95897d8b1cadeb6aa7db092e19f0ab3.jpg?1661759515 "Sophia: Calculating [H+]: Lesson 1 Instructional Video")
Sophia Learning
Sophia: Calculating [H+]: Lesson 1
This lesson will demonstrate how to calculate the H+ concentration given the pH of a solution. It is 1 of 2 in the series titled "Calculating [H+]". [4:30]
Sophia Learning
Sophia: Calculating P Oh: Lesson 2
This lesson will demonstrate how to calculate the pOH of a solution knowing the total of both pH and pOH is 14. It is 2 of 2 in the series titled "Calculating pOH."